Genetic analysis of French bean (Phaseolus vulgaris l.) germplasm through principal component analysis and D2 cluster analysis

Abstract

Seventy four French bean germplasm were evaluated for twenty two quantitative traits to study the genetic diversity during Jan-Feb in G.B. Pant University of Agriculture and Technology. Principal component analysis showed that the first principal component had maximum of 30.85% variation of total variation, while the first seven principal component axes together with explained 83.41% variation, suggesting first seven principal axes are adequate to explain the variation in reduced dimension. Clustering through D2 analysis revealed maximum inter-cluster distance of clusters V and IX (1405.141) followed by cluster III and IX (1297.298).